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    FT_HAS_HORIZONTAL
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  <a href="#ft_has_vertical" class="md-nav__link">
    FT_HAS_VERTICAL
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  <a href="#ft_has_kerning" class="md-nav__link">
    FT_HAS_KERNING
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    FT_HAS_FIXED_SIZES
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  <a href="#ft_has_glyph_names" class="md-nav__link">
    FT_HAS_GLYPH_NAMES
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    FT_HAS_COLOR
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    FT_HAS_MULTIPLE_MASTERS
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    FT_HAS_SVG
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    FT_HAS_SBIX
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    FT_HAS_SBIX_OVERLAY
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    FT_IS_SFNT
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    FT_IS_SCALABLE
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    FT_IS_CID_KEYED
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    FT_IS_TRICKY
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                <p><a href="https://www.freetype.org">FreeType</a> &raquo; <a href="../">Docs</a> &raquo; <a href="index.html#core-api">Core API</a> &raquo; Font Testing Macros</p>
<hr />
<h1 id="font-testing-macros">Font Testing Macros<a class="headerlink" href="#font-testing-macros" title="Permanent link">&para;</a></h1>
<h2 id="synopsis">Synopsis<a class="headerlink" href="#synopsis" title="Permanent link">&para;</a></h2>
<p>Macros to test the most important font properties.</p>
<p>It is recommended to use these high-level macros instead of directly testing the corresponding flags, which are scattered over various structures.</p>
<h2 id="ft_has_horizontal">FT_HAS_HORIZONTAL<a class="headerlink" href="#ft_has_horizontal" title="Permanent link">&para;</a></h2>
<p>Defined in FT_FREETYPE_H (freetype/freetype.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> <b>FT_HAS_HORIZONTAL</b>( face ) \
          ( !!( (face)-&gt;face_flags &amp; <a href="ft2-face_creation.html#ft_face_flag_horizontal">FT_FACE_FLAG_HORIZONTAL</a> ) )
</code></pre></div>

<p>A macro that returns true whenever a face object contains horizontal metrics (this is true for all font formats though).</p>
<h4>also</h4>

<p><code><a href="ft2-font_testing_macros.html#ft_has_vertical">FT_HAS_VERTICAL</a></code> can be used to check for vertical metrics.</p>
<hr>

<h2 id="ft_has_vertical">FT_HAS_VERTICAL<a class="headerlink" href="#ft_has_vertical" title="Permanent link">&para;</a></h2>
<p>Defined in FT_FREETYPE_H (freetype/freetype.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> <b>FT_HAS_VERTICAL</b>( face ) \
          ( !!( (face)-&gt;face_flags &amp; <a href="ft2-face_creation.html#ft_face_flag_vertical">FT_FACE_FLAG_VERTICAL</a> ) )
</code></pre></div>

<p>A macro that returns true whenever a face object contains real vertical metrics (and not only synthesized ones).</p>
<hr>

<h2 id="ft_has_kerning">FT_HAS_KERNING<a class="headerlink" href="#ft_has_kerning" title="Permanent link">&para;</a></h2>
<p>Defined in FT_FREETYPE_H (freetype/freetype.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> <b>FT_HAS_KERNING</b>( face ) \
          ( !!( (face)-&gt;face_flags &amp; <a href="ft2-face_creation.html#ft_face_flag_kerning">FT_FACE_FLAG_KERNING</a> ) )
</code></pre></div>

<p>A macro that returns true whenever a face object contains kerning data that can be accessed with <code><a href="ft2-glyph_retrieval.html#ft_get_kerning">FT_Get_Kerning</a></code>.</p>
<hr>

<h2 id="ft_has_fixed_sizes">FT_HAS_FIXED_SIZES<a class="headerlink" href="#ft_has_fixed_sizes" title="Permanent link">&para;</a></h2>
<p>Defined in FT_FREETYPE_H (freetype/freetype.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> <b>FT_HAS_FIXED_SIZES</b>( face ) \
          ( !!( (face)-&gt;face_flags &amp; <a href="ft2-face_creation.html#ft_face_flag_fixed_sizes">FT_FACE_FLAG_FIXED_SIZES</a> ) )
</code></pre></div>

<p>A macro that returns true whenever a face object contains some embedded bitmaps. See the <code>available_sizes</code> field of the <code><a href="ft2-face_creation.html#ft_facerec">FT_FaceRec</a></code> structure.</p>
<hr>

<h2 id="ft_has_glyph_names">FT_HAS_GLYPH_NAMES<a class="headerlink" href="#ft_has_glyph_names" title="Permanent link">&para;</a></h2>
<p>Defined in FT_FREETYPE_H (freetype/freetype.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> <b>FT_HAS_GLYPH_NAMES</b>( face ) \
          ( !!( (face)-&gt;face_flags &amp; <a href="ft2-face_creation.html#ft_face_flag_glyph_names">FT_FACE_FLAG_GLYPH_NAMES</a> ) )
</code></pre></div>

<p>A macro that returns true whenever a face object contains some glyph names that can be accessed through <code><a href="ft2-information_retrieval.html#ft_get_glyph_name">FT_Get_Glyph_Name</a></code>.</p>
<hr>

<h2 id="ft_has_color">FT_HAS_COLOR<a class="headerlink" href="#ft_has_color" title="Permanent link">&para;</a></h2>
<p>Defined in FT_FREETYPE_H (freetype/freetype.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> <b>FT_HAS_COLOR</b>( face ) \
          ( !!( (face)-&gt;face_flags &amp; <a href="ft2-face_creation.html#ft_face_flag_color">FT_FACE_FLAG_COLOR</a> ) )
</code></pre></div>

<p>A macro that returns true whenever a face object contains tables for color glyphs.</p>
<h4>since</h4>

<p>2.5.1</p>
<hr>

<h2 id="ft_has_multiple_masters">FT_HAS_MULTIPLE_MASTERS<a class="headerlink" href="#ft_has_multiple_masters" title="Permanent link">&para;</a></h2>
<p>Defined in FT_FREETYPE_H (freetype/freetype.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> <b>FT_HAS_MULTIPLE_MASTERS</b>( face ) \
          ( !!( (face)-&gt;face_flags &amp; <a href="ft2-face_creation.html#ft_face_flag_multiple_masters">FT_FACE_FLAG_MULTIPLE_MASTERS</a> ) )
</code></pre></div>

<p>A macro that returns true whenever a face object contains some multiple masters. The functions provided by <code><a href="ft2-header_file_macros.html#ft_multiple_masters_h">FT_MULTIPLE_MASTERS_H</a></code> are then available to choose the exact design you want.</p>
<hr>

<h2 id="ft_has_svg">FT_HAS_SVG<a class="headerlink" href="#ft_has_svg" title="Permanent link">&para;</a></h2>
<p>Defined in FT_FREETYPE_H (freetype/freetype.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> <b>FT_HAS_SVG</b>( face ) \
          ( !!( (face)-&gt;face_flags &amp; <a href="ft2-face_creation.html#ft_face_flag_svg">FT_FACE_FLAG_SVG</a> ) )
</code></pre></div>

<p>A macro that returns true whenever a face object contains an &lsquo;SVG&nbsp;&rsquo; OpenType table.</p>
<h4>since</h4>

<p>2.12</p>
<hr>

<h2 id="ft_has_sbix">FT_HAS_SBIX<a class="headerlink" href="#ft_has_sbix" title="Permanent link">&para;</a></h2>
<p>Defined in FT_FREETYPE_H (freetype/freetype.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> <b>FT_HAS_SBIX</b>( face ) \
          ( !!( (face)-&gt;face_flags &amp; <a href="ft2-face_creation.html#ft_face_flag_sbix">FT_FACE_FLAG_SBIX</a> ) )
</code></pre></div>

<p>A macro that returns true whenever a face object contains an &lsquo;sbix&rsquo; OpenType table <em>and</em> outline glyphs.</p>
<p>Currently, FreeType only supports bitmap glyphs in PNG format for this table (i.e., JPEG and TIFF formats are unsupported, as are Apple-specific formats not part of the OpenType specification).</p>
<h4>note</h4>

<p>For backward compatibility, a font with an &lsquo;sbix&rsquo; table is treated as a bitmap-only face. Using <code><a href="ft2-face_creation.html#ft_open_face">FT_Open_Face</a></code> with <code><a href="ft2-parameter_tags.html#ft_param_tag_ignore_sbix">FT_PARAM_TAG_IGNORE_SBIX</a></code>, an application can switch off &lsquo;sbix&rsquo; handling so that the face is treated as an ordinary outline font with scalable outlines.</p>
<p>Here is some pseudo code that roughly illustrates how to implement &lsquo;sbix&rsquo; handling according to the OpenType specification.
<div class="highlight"><pre><span></span><code>  if ( FT_HAS_SBIX( face ) )
  {
    // open font as a scalable one without sbix handling
    FT_Face       face2;
    FT_Parameter  param = { FT_PARAM_TAG_IGNORE_SBIX, NULL };
    FT_Open_Args  args  = { FT_OPEN_PARAMS | ...,
                            ...,
                            1, &amp;param };


    FT_Open_Face( library, &amp;args, 0, &amp;face2 );

    &lt;sort `face-&gt;available_size` as necessary into
     `preferred_sizes`[*]&gt;

    for ( i = 0; i &lt; face-&gt;num_fixed_sizes; i++ )
    {
      size = preferred_sizes[i].size;

      error = FT_Set_Pixel_Sizes( face, size, size );
      &lt;error handling omitted&gt;

      // check whether we have a glyph in a bitmap strike
      error = FT_Load_Glyph( face,
                             glyph_index,
                             FT_LOAD_SBITS_ONLY          |
                             FT_LOAD_BITMAP_METRICS_ONLY );
      if ( error == FT_Err_Invalid_Argument )
        continue;
      else if ( error )
        &lt;other error handling omitted&gt;
      else
        break;
    }

    if ( i != face-&gt;num_fixed_sizes )
      &lt;load embedded bitmap with `FT_Load_Glyph`,
       scale it, display it, etc.&gt;

    if ( i == face-&gt;num_fixed_sizes  ||
         FT_HAS_SBIX_OVERLAY( face ) )
      &lt;use `face2` to load outline glyph with `FT_Load_Glyph`,
       scale it, display it on top of the bitmap, etc.&gt;
  }
</code></pre></div></p>
<p>[*] Assuming a target value of 400dpi and available strike sizes 100, 200, 300, and 400dpi, a possible order might be [400, 200, 300, 100]: scaling 200dpi to 400dpi usually gives better results than scaling 300dpi to 400dpi; it is also much faster. However, scaling 100dpi to 400dpi can yield a too pixelated result, thus the preference might be 300dpi over 100dpi.</p>
<h4>since</h4>

<p>2.12</p>
<hr>

<h2 id="ft_has_sbix_overlay">FT_HAS_SBIX_OVERLAY<a class="headerlink" href="#ft_has_sbix_overlay" title="Permanent link">&para;</a></h2>
<p>Defined in FT_FREETYPE_H (freetype/freetype.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> <b>FT_HAS_SBIX_OVERLAY</b>( face ) \
          ( !!( (face)-&gt;face_flags &amp; <a href="ft2-face_creation.html#ft_face_flag_sbix_overlay">FT_FACE_FLAG_SBIX_OVERLAY</a> ) )
</code></pre></div>

<p>A macro that returns true whenever a face object contains an &lsquo;sbix&rsquo; OpenType table with bit&nbsp;1 in its <code>flags</code> field set, instructing the application to overlay the bitmap strike with the corresponding outline glyph. See <code><a href="ft2-font_testing_macros.html#ft_has_sbix">FT_HAS_SBIX</a></code> for pseudo code how to use it.</p>
<h4>since</h4>

<p>2.12</p>
<hr>

<h2 id="ft_is_sfnt">FT_IS_SFNT<a class="headerlink" href="#ft_is_sfnt" title="Permanent link">&para;</a></h2>
<p>Defined in FT_FREETYPE_H (freetype/freetype.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> <b>FT_IS_SFNT</b>( face ) \
          ( !!( (face)-&gt;face_flags &amp; <a href="ft2-face_creation.html#ft_face_flag_sfnt">FT_FACE_FLAG_SFNT</a> ) )
</code></pre></div>

<p>A macro that returns true whenever a face object contains a font whose format is based on the SFNT storage scheme. This usually means: TrueType fonts, OpenType fonts, as well as SFNT-based embedded bitmap fonts.</p>
<p>If this macro is true, all functions defined in <code><a href="ft2-header_file_macros.html#ft_sfnt_names_h">FT_SFNT_NAMES_H</a></code> and <code><a href="ft2-header_file_macros.html#ft_truetype_tables_h">FT_TRUETYPE_TABLES_H</a></code> are available.</p>
<hr>

<h2 id="ft_is_scalable">FT_IS_SCALABLE<a class="headerlink" href="#ft_is_scalable" title="Permanent link">&para;</a></h2>
<p>Defined in FT_FREETYPE_H (freetype/freetype.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> <b>FT_IS_SCALABLE</b>( face ) \
          ( !!( (face)-&gt;face_flags &amp; <a href="ft2-face_creation.html#ft_face_flag_scalable">FT_FACE_FLAG_SCALABLE</a> ) )
</code></pre></div>

<p>A macro that returns true whenever a face object contains a scalable font face (true for TrueType, Type&nbsp;1, Type&nbsp;42, CID, OpenType/CFF, and PFR font formats).</p>
<hr>

<h2 id="ft_is_fixed_width">FT_IS_FIXED_WIDTH<a class="headerlink" href="#ft_is_fixed_width" title="Permanent link">&para;</a></h2>
<p>Defined in FT_FREETYPE_H (freetype/freetype.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> <b>FT_IS_FIXED_WIDTH</b>( face ) \
          ( !!( (face)-&gt;face_flags &amp; <a href="ft2-face_creation.html#ft_face_flag_fixed_width">FT_FACE_FLAG_FIXED_WIDTH</a> ) )
</code></pre></div>

<p>A macro that returns true whenever a face object contains a font face that contains fixed-width (or &lsquo;monospace&rsquo;, &lsquo;fixed-pitch&rsquo;, etc.) glyphs.</p>
<hr>

<h2 id="ft_is_cid_keyed">FT_IS_CID_KEYED<a class="headerlink" href="#ft_is_cid_keyed" title="Permanent link">&para;</a></h2>
<p>Defined in FT_FREETYPE_H (freetype/freetype.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> <b>FT_IS_CID_KEYED</b>( face ) \
          ( !!( (face)-&gt;face_flags &amp; <a href="ft2-face_creation.html#ft_face_flag_cid_keyed">FT_FACE_FLAG_CID_KEYED</a> ) )
</code></pre></div>

<p>A macro that returns true whenever a face object contains a CID-keyed font. See the discussion of <code><a href="ft2-face_creation.html#ft_face_flag_xxx">FT_FACE_FLAG_CID_KEYED</a></code> for more details.</p>
<p>If this macro is true, all functions defined in <code><a href="ft2-header_file_macros.html#ft_cid_h">FT_CID_H</a></code> are available.</p>
<hr>

<h2 id="ft_is_tricky">FT_IS_TRICKY<a class="headerlink" href="#ft_is_tricky" title="Permanent link">&para;</a></h2>
<p>Defined in FT_FREETYPE_H (freetype/freetype.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> <b>FT_IS_TRICKY</b>( face ) \
          ( !!( (face)-&gt;face_flags &amp; <a href="ft2-face_creation.html#ft_face_flag_tricky">FT_FACE_FLAG_TRICKY</a> ) )
</code></pre></div>

<p>A macro that returns true whenever a face represents a &lsquo;tricky&rsquo; font. See the discussion of <code><a href="ft2-face_creation.html#ft_face_flag_xxx">FT_FACE_FLAG_TRICKY</a></code> for more details.</p>
<hr>

<h2 id="ft_is_named_instance">FT_IS_NAMED_INSTANCE<a class="headerlink" href="#ft_is_named_instance" title="Permanent link">&para;</a></h2>
<p>Defined in FT_FREETYPE_H (freetype/freetype.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> <b>FT_IS_NAMED_INSTANCE</b>( face ) \
          ( !!( (face)-&gt;face_index &amp; 0x7FFF0000L ) )
</code></pre></div>

<p>A macro that returns true whenever a face object is a named instance of a GX or OpenType variation font.</p>
<p>[Since 2.9] Changing the design coordinates with <code><a href="ft2-multiple_masters.html#ft_set_var_design_coordinates">FT_Set_Var_Design_Coordinates</a></code> or <code><a href="ft2-multiple_masters.html#ft_set_var_blend_coordinates">FT_Set_Var_Blend_Coordinates</a></code> does not influence the return value of this macro (only <code><a href="ft2-multiple_masters.html#ft_set_named_instance">FT_Set_Named_Instance</a></code> does that).</p>
<h4>since</h4>

<p>2.7</p>
<hr>

<h2 id="ft_is_variation">FT_IS_VARIATION<a class="headerlink" href="#ft_is_variation" title="Permanent link">&para;</a></h2>
<p>Defined in FT_FREETYPE_H (freetype/freetype.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> <b>FT_IS_VARIATION</b>( face ) \
          ( !!( (face)-&gt;face_flags &amp; <a href="ft2-face_creation.html#ft_face_flag_variation">FT_FACE_FLAG_VARIATION</a> ) )
</code></pre></div>

<p>A macro that returns true whenever a face object has been altered by <code><a href="ft2-multiple_masters.html#ft_set_mm_design_coordinates">FT_Set_MM_Design_Coordinates</a></code>, <code><a href="ft2-multiple_masters.html#ft_set_var_design_coordinates">FT_Set_Var_Design_Coordinates</a></code>, <code><a href="ft2-multiple_masters.html#ft_set_var_blend_coordinates">FT_Set_Var_Blend_Coordinates</a></code>, or <code><a href="ft2-multiple_masters.html#ft_set_mm_weightvector">FT_Set_MM_WeightVector</a></code>.</p>
<h4>since</h4>

<p>2.9</p>
<hr>
                
              
              
                


              
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